Pasting device.



UYTNESSES PATENTED FEB. 7, 1905.

A. O. GETTEN.

PASTING DEVICE.

APPLIOATION FILED MAR. 17. 1903.

Patented February 7, 1905.

UNITED STATES PATENT OFFice.

ALBERT t. (rElTEN, OF SANDYHILL, NETV YORK, ASSIHNOR TO UNION PAPER BAG MACHINE COMPANY, OF PHILADELPHIA, lE

i\' NSYLVANI A,

A CORPORATION OF PENNSYLVANIA.

PASTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 781,941, dated February '7, 1905. Application filed March 17, 1903. Serial No. 148,148.

IO thereof.

My invention relates to pasting devices such as are used in the formation of paper tubes to he subsequently cut into blanks and for forming the longitudinal seam of such tubes.

The pasting devices generally used consist of a paste wheel or disk running in connection with a source of paste-supply, generally a paste-trough, and in further connection with a slotted scraper, which gages the thickness of the paste layer which comes in contact with the edge of the paper. This pasting device as heretofore employed is defective in that it applies a line of paste of uniform breadth, whereas in many cases it is desirable that the paste line should at certain points he of increased breadth to more securely bind the seam of the tube at points where such seam is subsequently exposed to the greatest strains.

The object of my invention is to provide 0 means whereby the paste line applied to the paper can at regular intervals be made of in-, creased breadtltaml l accomplish this by forming a paste-disk with a portion of its periphery of enlarged breadth and forming the slotted 5 scraper with the walls of its slot made retractable, so as to give passage to the enlarged portion of the disk.

The nature of my improvements will be best understood as described in connection with the o drawings, in which it is illustrated, and in which 7 Figure 1 is a plan view of the pasting device provided with my improvements; Fig. aside elevation of the same mechanism, taken 5 on the line 2 2 of Fig. 1; Fig. 3, a front elevation taken on the line 3 3 of Fig. 2; Fig. 4:,

a side elevation taken as on the line 4 4. of Fig. 5, showing a somewhat modified construction l l l of my device, Fig. 5 being a front view on the section-line 5 5 of Fig. 4E and Fig. 6 a perspective view illustrating the construction of the retractable slot-walls in the modilication of Figs. 1L and Fig. 7 is a perspective view of a portion of the paste-disk, showing the elastic cleaning-tongue, illustrated also in connection with Figs. l and i. Fig. 8 is a side elevation illustrating a somewhat modilied construction, and Fig. 9 is a perspective view illustrating the modilication in the cleaning device shown in connection with Fig. 8.

A indicates the paste-trough; B, the shaft which supports the paste-disk and is supported in bearings provided in the walls of the pastetrough.

O is the paste-disk secured on the shaft B and, as shown, formed with a portion C of its periphery of greater breadth than the remainder.

l.) is the elastic tongue secured on the side of the paste-disk, as shown in Figs. 1, 2, A, and 7, and provided with a laterally-extending cleaning-tongue (indicated at D) which normally projects above the surface of the disk C, as shown, but which when pressed down passes below or flush with the face of the disk entering a notch, (indicated atUi) which is formed in the face of the disk to receive it.

E indicates the scraper plate, which is shown as supported on the walls of the pastetank and formed with a slot to receive the edge of the disk the lixed lateral walls of said slot being indicated at E".

w 1*, Figs. 1, E2, and 3, indicate plates pivotally connected with a bracket F at F and extending over the plate E. As shown, these plates are normally drawn together by the action of the spring r, so as to bring their inner edges c c into position to form the walls of the slot in normal operative position, the said edges c extending over the edges E of the permanent slot. As shown, (1" (ii indicate guides which hold the plates er in contact with the plate E and prevent them from ris- .ing under pressure which may be exerted by the paste-disk and the paste accumulated thereon.

walls of the slotfrom being drawn together 'into operation to clean out the slot of the disk K is a scraping-plate moving in guideways l supported on the under face of the plate E and in a path which will carry it across the inner end of the slot. This cleaning-plate K is given an intermittent in-and-out motion through a pivoted lever I, pivoted at J on the plate E and operated by a cam H on the shaft B. a

In the construction shown in Figs. i and 5 the retractable walls of the slot are formed by inwardly-turned plates L L. extending in toward each other from upwardly-turned blades L which in turn are secured to sleeves L, turning on studs, (indicated at L said sleeves beingprovided with upwardly-extending arms L", which are connected together by a spring L The plates L, in addition to their inner edges L, are shown as formed with inwardlyprojecting stops L which by coming in contact with each other prevent the retractable by the action of the spring.

In Figs. 8 and 9 a'modified constructionjs illustrated in which an elastic tongue D is secured directly in the face of the paste-disk G and at the end of a cut-away portion C in the face of the said disk, which cut-away portion permits the elastic cleaning-tongue to be depressed flush with the periphery of the disk.

M and M, Fig. t, indicate guide-rolls over which the paper (indicated at M passes, the line of paste being applied to the paper at the point where the paste-disk comes in contact with the roll M.

In operation the paste-disk is rotated in the trough by the'frictional contact with the paper of the positively-driven roll M, the disk rotates in the direction indicated by the arrows, and the paste carried up out of the trough on the disk is scraped ofif to proper gage by the action of the slotted scraping-plate E and the parts operating in connection therewith. At each rotation of the disk one or both of its intermittently-actingcleaning devicesis brought and remove any accumulated paste thereinthat is to say, the elastic cleaning-tongues D or D in passing through the slot extend back to the end thereof and scrape out any paste which may have accumulated therein, thus preventing any accumulation which will harden in place and .interfere with the proper action of the pasting mechanism. In passing the roll M the elastic cleaning-tongues are depressed flush with the face of the paste-disk, and thus do not interfere with the application of paste to the paper. It will also be seen that at each rotation of the disk and its shaft B the reciprocating cleaner K will be caused to pass across the end of the gaging-slot in the scraper, removing any paste which may have accumulated on the lower side therein. For some purposes it is advisable to use both of the cleaning devices indicated, but ordinarily one will be sufficient, and by preference I would in such cases use the elastic tongue secured to the paste-disk.

It will readily be seen that the broadened portion C of the periphery of the disk C when it comes into registry with the roll M applies to the paper thereon a materially broader line of paste than is'applied by the narrower portion of the disk, and it will also be obvious that as this broadened portion passes through the scraper it will act as a cam, pressing back the plates 6 0 or L L, which after yielding to give passage to the broader portion of the disk will by the action of the springs e or L be at once drawn back to normal position to coact with the narrower portion of the disk.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a pasting device, a paste-disk having a portion of its periphery made broader than the rest, in combination with a slotted scraper for gaging the thickness of the paste layer, the lateral walls of said scrapers slot being retractable to give passage to the broadened portion of the disk.

2. In a pasting device, a paste-disk having a portion of its periphery made broader than the rest, in combination with a slotted scraper for gaging the thickness of the paste layer, the lateral walls of said scrapers slot being retractable to give passage to the broadened portion of the disk, and an intermittentlyacting cleaner for removing paste from the scraper.

ALBERT C. GETT EN.

WVitnesses:

FRED E. EARLn, H. T. CORNELL. 

